Senior Software Test Engineer

Senior Software Test Engineer

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Job #: R-00175847

Location:

Huntsville, United States

Category: Software Engineering

Schedule (FT/PT): Full Time

Travel Required: Yes, 10% of the time

Shift: Day

Remote Type: No Remote

Clearance: Secret

External Referral Program: Ineligible

Sector: Defense

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Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Your greatest work is ahead!

Leidos’ Defense Systems is seeking a talented Senior Software Test Engineer to join a multidisciplinary team to create unique solutions to complex engineering challenges in our Huntsville, AL location. The ideal candidate will thrive in a learning environment that encourages leadership and technical growth.

The Senior Software Test Engineer will join a highly skilled, multidisciplinary team contributing to products for a variety of programs, from large DoD (both offensive and defensive) to space. A successful candidate will be analytical and thorough with defining and executing tests. This role includes testing and integrating software components for large-scale software products, including developing and executing test procedures and communicating results with the team to validate and improve our products. The candidate will work to analyze, validate, and trace requirements to tests. The candidate may be involved in all levels of testing: System, Integration, Regression, and Design Verification

If this sounds like the kind of environment where you can thrive, keep reading!

Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!

You will love this job if you:

• Enjoy breaking things or finding the limits of product design
• Enjoy problem solving and debugging
• Like to write scripts but also like to get your hands on actual hardware to assemble and build systems
• Take an analytical approach to solving problems and organizing data
• Enjoy mentoring others on best practices and approaches

Basic Qualifications:

• Have a Bachelor’s degree in Computer Science, Computer Engineering or equivalent degree from an ABET-accredited university with at least 8 years of experience in a highly technical role OR have a Master’s degree in Computer Science, Computer Engineering or equivalent degree from an ABET-accredited university with at least 6 years of experience in a highly technical role
• Have highly technical software and/or test experience
• Be able to work in a lab environment in-person
• Have experience creating and following test plans and procedures, including providing detailed evidence of test results
• Have experience detecting and tracking software defects and inconsistencies
• Have experience collaborating closely with software engineers and other engineering disciplines
• Have experience with system development processes, including systems engineering, software safety, requirements traceability, and software validation and verification
• Mentor peers and junior engineers on best practices/test approaches
• Be a resident or willing to relocate to the North Alabama area
• Candidate must have ability to obtain and maintain a DoD Secret security clearance.

Other Qualifications:

Preference shown to candidates who have experience and/or working knowledge with:

• Able to read/analyze object-oriented program source in one or more languages (C++/C#/Java/Python)
• Able to develop test automation in Python
• CMMI best practices
• Customer interaction and engagement
• Ability to decompose high-level requirements into software test architecture and procedures
• Ability to lead a software test team of varying size

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

February 11, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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